Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyDihydrofolate reductase-like 8040487 3001255 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyDihydrofolate reductase-like 8040487 3001255 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ADHFR_1e1dhfA1 A: a/b three-layered sandwichesX: Dihydrofolate reductases (From Topology)H: Dihydrofolate reductases (From Topology)T: Dihydrofolate reductasesF: DHFR_1ECOD (1.6)
BDHFR_1e1dhfB1 A: a/b three-layered sandwichesX: Dihydrofolate reductases (From Topology)H: Dihydrofolate reductases (From Topology)T: Dihydrofolate reductasesF: DHFR_1ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
DIHYDROFOLATE REDUCTASE

Pharos: Disease Associations Pharos Homepage Annotation

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
dihydrofolate reductase (mammalian)  M-CSA #490

Dihydrofolate reductase catalyses the reduction of 7,8-dihydrofolate (DHF) to 5,6,7,8-tetrahydrofolate (THF) by stereospecific hydride transfer from a NADPH cofactor to teh C6 atom of the pterin ring with concomitant protonation at N(5). DHFR plays a central role cell maintenance of THF reserves, which are essential for purine and thimidylate synthesis and hence for cell growth and proliferation. As DHFR is the sole source of THF, the enzyme is the Achilles heel of rapidly proliferating cells and, therefore, has been a major focus in the development of anticancer and antibacterial reagents.

Defined by 2 residues: LEU:A-22GLU:A-30
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